Display device

Abstract

To provide a display device capable of improving design.SOLUTION: A display device 1 in an embodiment includes: a display module 60; a decorative panel 80 with translucency placed on a display surface 64 to cover the display surface 64 of the display module 60; and a half mirror 70 placed to cover the display surface 64 of the display module 60 between the display module 60 and the decorative panel 80. A reflection part 72 of the half mirror 70 is placed at the decorative panel 80 side. The half mirror 70 transmits light from the display module 60 side and reflects light from the decorative panel 80 side.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a display device. [Background technology]

[0002] Conventionally, display devices equipped with a liquid crystal panel or the like for displaying characters and images have been used in many electronic devices. An example of an electronic device using a display device is an intercom device. The intercom device described in Patent Document 1 includes a housing 2, a touch panel 20, an image display panel 50, and one or more substrates 80. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-061616 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in an electronic device with a display device as described above, when the liquid crystal panel is in the off state, such as when not in operation, the color of the liquid crystal panel in the off state is exposed to the outside world. Since the liquid crystal panel in the off state is close to black, it does not blend in with the atmosphere of the installation space, and stands out due to the difference in color with the housing, which can disrupt the interior design.

[0005] The present disclosure is intended to solve the problems of the related art, and aims to provide a display device with further improved design. [Means for solving the problem]

[0006] As a means for solving the above problems, a display device is provided which includes a display module, a decorative panel having translucency and arranged on the display surface side of the display module so as to cover the display surface, and a half mirror arranged between the display module and the decorative panel so as to cover the display surface of the display module, the reflective portion of the half mirror being arranged on the decorative panel side, and the half mirror transmitting light from the display module side and reflecting light from the decorative panel side. Effect of the Invention

[0007] According to the present disclosure, it is possible to provide a display device that aims to further improve design. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of an intercom device according to a first embodiment; [Diagram 2] FIG. 1 is a perspective view of a display according to a first embodiment; [Diagram 3] FIG. 1 is a configuration diagram of a display according to a first embodiment; [Figure 4] 1 is a diagram showing the configuration of a display module according to a first embodiment; [Diagram 5] 1 is a cross-sectional view of a half mirror according to a first embodiment; [Figure 6] 1 is a cross-sectional view of a decorative panel according to a first embodiment; [Figure 7] FIG. 1 is a front view of a decorative panel according to a first embodiment; [Figure 8] State diagram of the display according to the first embodiment [Figure 9] FIG. 13 is a diagram showing the configuration of a second display according to a second embodiment; [Figure 10] 11 is a cross-sectional view of a decorative panel according to a third embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, a display device according to an embodiment of the present disclosure will be described with reference to the drawings. Note that each of the embodiments described below shows a preferred specific example of the present disclosure. Therefore, the numerical values, shapes, materials, components, arrangement and connection forms of the components, steps, and order of steps shown in the following embodiments are merely examples and are not intended to limit the present disclosure. Therefore, among the components in the following embodiments, components that are not described in the independent claims showing the highest concept of the present disclosure will be described as optional components. Note that each figure is a schematic diagram and is not necessarily a strict illustration.

[0010] [First embodiment] A display device 1 according to a first embodiment of the present disclosure will be described below. FIG. 1 is a perspective view of an intercom device 2 according to the first embodiment. FIG. 2 is a perspective view of a first display 50 according to the first embodiment. In the first embodiment, an intercom device 2, which is the display device 1, will be used for description. As shown in FIG. 1, the intercom device 2 includes a housing 10 and a first display 50. As shown in FIG. 2, the first display 50 includes a display module 60, a half mirror 70, a decorative panel 80, and a touch panel 90. Each configuration of the display device 1 will be described in detail below with reference to FIG. 1 and with reference to FIGS. 2 to 8.

[0011] (Chassis 10) 1, the housing 10 has an opening 11, an edge portion 12 that forms the opening 11, and a button portion 13, and has a first display 50 provided therein. Specifically, the first display 50 is fixed so that a first display surface 51 of the first display 50 is exposed from the opening 11. The edge portion 12 is provided so as to surround the periphery of the first display 50.

[0012] The button section 13 is an operation button for controlling the intercom device 2. The intercom device 2 controls the locking of a door and the on / off of a call by operating the button section 13.

[0013] (First display 50) Fig. 3 is a configuration diagram of the first display 50 according to the first embodiment. As shown in Fig. 2 and Fig. 3, from the display module 60 and first display surface 51 side, the decorative panel 80, the half mirror 70, the touch panel 90, and the display module 60 are stacked in this order. Here, the first display surface 51 is the surface of a panel portion 81 of the decorative panel 80 (described later). The first display 50 is a display medium that displays characters and images.

[0014] The first display surface 51 of the first display 50 is close to black when not in operation (when the backlight 65 (described later) of the display module 60 is powered off). This leads to the first display 50 not blending in with the atmosphere in the installation space of the display device 1 and to the difference in color with the housing 10 making it stand out unfavorably.

[0015] (Display module 60) FIG. 4(a) is a cross-sectional view of a display module 60 according to the first embodiment. The display module 60 is used in portable, tabletop, wall-mounted, or other electronic devices. In FIG. 4(a), each component of the display module 60 is highlighted. As shown in FIG. 4(a), the display module 60 is a liquid crystal module, and includes a liquid crystal section 61 and a backlight 65 disposed on the back surface of the liquid crystal section 61. Of course, the display module 60 does not have to be a liquid crystal module, and may be an organic EL or the like, as long as it is capable of projecting an image on the first display surface 51.

[0016] The display module 60 has a display surface 64, and is disposed so that the display surface 64 faces a half mirror 70 (described later).

[0017] (LCD section 61) The liquid crystal section 61 can use various known and commonly used liquid crystals and the like that are used in this type of liquid crystal module without any particular restrictions.

[0018] 4(a), the liquid crystal unit 61 in this embodiment is capable of displaying a color image. Therefore, one pixel 62 includes three sub-pixels 63, for example, a first sub-pixel 63a capable of transmitting only blue light, a second sub-pixel 63b capable of transmitting only green light, and a third sub-pixel 63c capable of transmitting only red light, out of white light emitted from a backlight 65.

[0019] (Backlight 65) As the backlight 65, various known backlights used in this type of liquid crystal module can be used without any particular restrictions.

[0020] FIG. 4(b) is a perspective view of the backlight 65 according to the first embodiment. As shown in FIG. 4(b), the backlight 65, which is a light-emitting layer such as a white light-emitting diode (LED), has a planar light source 66 and a light guide member 67 arranged adjacent to the planar light source 66. The light guide member 67 is, for example, a sheet or plate having a light adjustment function such as light diffusion. The planar light source 66 irradiates light toward the light guide member 67 (in the direction of the black arrow) so that the surface facing the liquid crystal unit 61 irradiates uniform light. In this embodiment, the number of light guide members 67 used in the backlight 65 is one. However, the number of light guide members used in the backlight may be two or more. Of course, the light guide member 67 may not be used and may be provided on the entire back surface of the liquid crystal unit 61 in a direction that illuminates the liquid crystal unit 61.

[0021] (Half Mirror 70) FIG. 5 is a cross-sectional view of the half mirror 70 according to the first embodiment. As shown in FIG. 5, the half mirror 70 has a transmission portion 71 and a reflection portion 72. The half mirror 70 transmits a part of the light as it is and reflects the remaining light by a mirror surface. In other words, the reflectance and transmittance of the light do not necessarily have to be 1:1, and may be, for example, 1:9 or 2:8. As shown in FIG. 5, the light incident on the reflection portion 72 as shown by the arrow A passes through the half mirror 70 and exits from the transmission portion 71. Also, the light incident on the transmission portion 71 as shown by the arrow B is reflected by the reflection portion 72 of the half mirror 70 and exits from the transmission portion 71.

[0022] The half mirror 70 is provided between the display module 60 and a decorative panel 80 (described later), with the transmissive portion 71 disposed on the decorative panel 80 side and the reflective portion 72 disposed on the liquid crystal portion 61 side.

[0023] (Decorative Panel 80) Fig. 6 is a cross-sectional view of the decorative panel according to the first embodiment. Each component of the decorative panel 80 in Fig. 6 is highlighted. As shown in Figs. 6 and 7, the decorative panel 80 has a panel portion 81 having translucency and a decorative portion 82 that reflects a predetermined light, and can color the first display surface 51 of the first display 50. The decorative panel 80 has translucency and is disposed on the display surface 64 side of the display module 60.

[0024] The decorative panel 80 has a rectangular shape similar to that of the display module 60 , and its dimensions are preferably such that it can cover the display surface 64 of the display module 60 .

[0025] The panel unit 81 is a rectangular, colorless, transparent plate. This allows the image from the display module 60 to be clearly transmitted to the user. The plate-shaped panel unit 81 is made of plastic, glass, or the like, but any material may be used as long as it can clearly transmit the image from the display module 60. Of course, the panel unit 81 does not have to be plate-shaped. For example, it may be a sheet-shaped panel made of polyvinyl chloride or the like.

[0026] The panel section 81 desirably has a shape and dimensions capable of covering the display surface 64 of the display module 60 .

[0027] FIG. 7(a) is a front view of a decorative panel having dot-shaped decorative parts according to the first embodiment. FIG. 7(b) is a front view of a decorative panel having a lattice-shaped decorative part according to the first embodiment. Each component of the decorative panel 80 in FIG. 7 is highlighted. As shown in FIG. 7, the decorative parts 82 are provided so as to be dotted on the front or back surface of the panel part 81. This improves the transmittance of the decorative panel 80 compared to the case where the decorative parts 82 are provided on the entire panel part 81. Specifically, as shown in FIG. 7(a), the decorative parts 82 are provided in a circular or angular dot shape. Also, as shown in FIG. 7(b), the decorative parts 82 may be provided in a lattice shape. It is desirable that the interval between the lattice-shaped or dot-shaped decorative parts 82 is an integer multiple of the dot interval (the interval between the pixels 62) of the display module. This makes it possible to prevent moire, which is a phenomenon in which stripes appear when regularly arranged images are superimposed. When the intervals between the decorative portions 82 are wide, the transmittance of the decorative panel 80 is improved, and when the intervals are narrow, the degree of coloring of the first display surface 51 is improved.

[0028] The decorative portion 82 is desirably the same color as the edge portion 12 of the housing 10. This prevents the first display 50 from standing out unnecessarily due to the difference in color between the first display surface 51 of the first display 50 and the edge portion 12 of the housing 10 when the first display 50 is in a power-off state (the backlight 65 of the display module 60 is in a power-off state), and prevents the first display 50 from impairing the interior.

[0029] The decorative portion 82 may be provided by printing on the panel portion 81. When providing the decorative portion 82 by printing, it is desirable to print the decorative portion 82 on the surface of the panel portion 81 using ink with a glossy finish. This allows the decorative portion 82 to reflect more light, so that the first display surface 51 can be colored more than when ink with a glossy finish is used. Therefore, even if the intervals between the lattice- or dot-shaped decorative portions 82 are widened, the degree of coloring is guaranteed. Therefore, the exposure of the panel portion 81 increases, improving the transmittance.

[0030] The decorative panel 80 is a semi-transparent panel that has both a transmission function and a reflection function. Here, the transmission function is a function that transmits light from the display module 60 side, making the material behind it and the screen of the display module 60 visible, and the reflection function is a function that reflects a specific wavelength and produces a color.

[0031] (Touch Panel 90) The touch panel 90 includes a display panel 91 and a contact sensor 92 provided on the display panel 91, and is a panel on which an operator can input information by touch operation. The type of the touch panel 90 is not limited to an infrared blocking type, and any detection means may be used, such as a capacitive touch panel that identifies the contact position by detecting a change in capacitance, a resistive film touch panel that identifies the contact position by a voltage change in two opposing resistive films, or an electromagnetic induction touch panel that identifies the contact position by detecting electromagnetic induction caused by a contact object touching the display unit.

[0032] Next, the overall configuration and dynamic changes of the first display 50 according to the first embodiment configured as above will be described.

[0033] (Overall composition) The first display 50 is configured by stacking a display module 60, a touch panel 90, a half mirror 70, and a decorative panel 80 in this order. The touch panel 90 is provided so as to contact the display surface 64 of the display module 60. The display module 60 and the touch panel 90 are integrated.

[0034] The half mirror 70 is provided between the display module 60 and the decorative panel 80, and is arranged so as to cover the display surface 64 of the display module 60. It is preferable that the half mirror 70 covers the entire display surface 64. It is also acceptable for the half mirror 70 to cover only a part of the display surface 64. The reflecting portion 72 of the half mirror 70 is arranged on the decorative panel 80 side, and the transmitting portion 71 of the half mirror 70 is arranged on the display module 60 side. In other words, the half mirror 70 transmits light from the display module 60 side and reflects light from the decorative panel 80 side. The decorative panel 80 side refers to a state in which the reflecting portion 72 and the decorative panel 80 face each other.

[0035] The half mirror 70 may be provided as a separate body, or may be produced by depositing a reflective material such as aluminum on the decorative panel 80 .

[0036] The decorative panel 80 is disposed on the display surface 64 side of the display module 60 so as to cover the display surface 64. It is preferable that the decorative panel 80 covers the entire display surface 64. However, it is also acceptable for the decorative panel 80 to cover only a portion of the display surface 64.

[0037] The decorative portion 82 is provided on the display module 60 side. This prevents the decorative portion 82 from being exposed on the first display surface 51 side, thereby preventing the decorative portion 82 from being scraped off by user operations. Of course, the decorative portion 82 may be provided on the first display surface 51 side.

[0038] (When the display module 60 is powered on) FIG. 8(a) is a state diagram of the first display 50 in a power-on state according to the first embodiment. In FIG. 8(a), each component of the decorative panel 80 and the display module 60 is highlighted. As shown in FIG. 8(a), when the backlight 65 of the display module 60 is in a power-on state, light that becomes a full-color image is emitted from the display module 60. The emitted light enters the transmission portion 71 of the half mirror 70 and passes through the half mirror 70. The light that passes through the half mirror 70 enters the decorative panel 80. The light that enters the decorative panel 80 passes through the panel portion 81 of the decorative panel 80. This allows a full-color image to be delivered to the user. The wider the dot intervals of the decorative portion 82 in the decorative panel 80, the clearer the image that can be delivered to the user. In other words, the higher the transmittance of the decorative panel 80, the clearer the image.

[0039] (When the display module 60 is powered off) FIG. 8(b) is a state diagram of the first display 50 in a power-off state according to the first embodiment. In FIG. 8(b), each component of the decorative panel 80 and the display module 60 is highlighted. As shown in FIG. 8(b), when the backlight 65 of the display module 60 is in a power-off state, most of the light that is incident on the decorative panel 80 from the first display surface 51 side of the first display 50 and that passes through the decorative panel 80 is reflected by the reflecting portion 72 of the half mirror 70. In other words, the light that is incident on the decorative panel 80 from the first display surface 51 side is hardly reflected by the display surface 64 of the display module 60. Therefore, in the first display 50 in a power-off state, the user does not recognize the display surface 64 of the display module 60, which is black.

[0040] Furthermore, most of the light that enters the decorative panel 80 from the first display surface 51 side of the first display 50 and does not pass through the decorative panel 80 is reflected by the decorative portion 82 and reaches the user. That is, the user sees the first display surface 51 of the first display 50 colored in the color of the decorative portion 82. As a result, the first display surface 51 of the first display 50 in the power-off state is not a color close to black, but is the same color as the housing 10, which is the color of the decorative portion 82, so that it blends in with the atmosphere of the installation space and the housing 10 and does not interfere with the interior design.

[0041] In other words, when the display module 60 is powered on, a full-color image can be delivered to the user. Also, when the display module 60 is powered off, the first display surface 51 of the first display 50 is colored in the color of the decorative portion 82 by the decorative panel 80, so that the user does not recognize the first display surface 51 as black.

[0042] [Effects] Next, the effects of the display device 1 according to the embodiment configured as above will be described.

[0043] Thus, the display device 1 according to the present embodiment includes the display module 60, the decorative panel 80 having translucency and disposed on the display surface 64 side of the display module 60 so as to cover the display surface 64, and the half mirror 70 disposed between the display module 60 and the decorative panel 80 so as to cover the display surface 64 of the display module 60. The reflective portion of the half mirror 70 is disposed on the decorative panel 80 side, and the half mirror 70 transmits light from the display module 60 side and reflects light from the decorative panel 80 side.

[0044] According to this, the first display surface 51 of the display device 1 in the power-off state is not a color close to black, but the color of the decorative panel 80, so that it blends in with the atmosphere of the installation space and the housing 10 and does not interfere with the interior.

[0045] The decorative panel 80 has a decorative portion that reflects a predetermined light, and a light-transmitting panel portion 81. The decorative portion is provided on the front or back surface of the panel portion 81 so as to be dotted thereon.

[0046] This improves the transmittance of the decorative panel 80 compared to a case in which the decorative portion 82 is provided on the entire panel portion 81 .

[0047] The display device 1 also includes a housing arranged around the decorative panel 80, and the decorative portion has the same color as the housing.

[0048] According to this, when the first display 50 is in a power-off state, the difference in color between the first display surface 51 of the first display 50 and the edge 12 of the housing 10 does not stand out unnecessarily, and the interior is not disrupted.

[0049] The decorative portion 82 is provided in a lattice or dot pattern.

[0050] This improves the transmittance of the decorative panel 80 compared to a case in which the decorative portion 82 is provided on the entire panel portion 81 .

[0051] Moreover, the intervals between the lattice-like or dot-like decorative portions 82 are an integral multiple of the dot intervals of the display module 60 .

[0052] This makes it possible to prevent moire, a phenomenon in which stripes appear when regularly-spaced images are overlaid.

[0053] Even if the touch panel 90 is not provided, the user will not recognize the black display module 60, and the first display surface 51 of the first display 50 can be colored. Therefore, the interior design is not disturbed, and therefore the touch panel 90 does not need to be provided. [Variations] The display device 1 according to the present disclosure has been described above based on the embodiments, but the present disclosure is not limited to these embodiments. As long as it does not deviate from the gist of the present disclosure, various modifications conceived by a person skilled in the art to the embodiments and other forms constructed by combining some of the components in the embodiments are also included within the scope of the present disclosure. Modifications of the embodiments are described below.

[0054] (Variation 1) The first modification will be described with a focus on the decorative panel 80, which is a difference from the first embodiment. The display device 1 in the first modification can detachably hold the decorative panel 80. This allows the user to replace the decorative panel 80 with one that matches their taste.

[0055] (Other variations) For example, the decorative portion 82 is provided on the panel portion 81, but it may be embedded within the panel portion 81.

[0056] Moreover, the decorative portion 82 may be provided on both the front and back surfaces of the panel portion 81. This allows the user to recognize the color of the decorative portion 82.

[0057] In addition, as long as it does not deviate from the gist of this disclosure, various modifications conceived by a person skilled in the art to the present embodiment and modified embodiments, or forms constructed by combining the components of the embodiments, are also included in the scope of this disclosure. In addition, the embodiments disclosed herein are illustrative in all respects and should be considered as not limiting. The scope of this disclosure is intended to include all modifications within the scope of the claims and a scope equivalent to the scope of the claims. The matters described in each embodiment can be combined with each other. In addition, the independent claims and dependent claims described in the claims can be combined with each other in all combinations, regardless of the citation format, within a range that is not contradictory. Furthermore, the claims use a format (multi-claim format) in which a claim cites two or more other claims, but this is not limited to this. A format in which a multi-claim (multi-multi-claim) citing at least one multi-claim may be used.

[0058] [Second embodiment] FIG. 9 is a configuration diagram of a second display 150 according to a second embodiment. In FIG. 9, each component of the decorative panel 80 and the display module 60 is highlighted. The second embodiment will be described below. Each component and dynamic change are the same as those in the first embodiment, and will be omitted in this embodiment. The overall configuration, including the method of providing each component, will be described in detail below.

[0059] (Overall composition) 9, the second display 150 is configured in the order of a display module 60, a half mirror 70, a decorative panel 80, and a touch panel 190, which are stacked on top of each other. That is, unlike the first embodiment, the display module 60 and the touch panel 190 are not integrated. In this case, the second display surface 151 is the surface of the touch panel 190. Also, the second display 150 may be configured in the order of a display module 60, a half mirror 70, a touch panel 190, and a decorative panel 80, which are stacked on top of each other.

[0060] The half mirror 70 is provided between the display module 60 and the decorative panel 80, and is disposed so as to cover the display surface 64 of the display module 60. Furthermore, the reflective portion 72 of the half mirror 70 is disposed on the display module 60 side, and the transmissive portion 71 of the half mirror 70 is disposed on the decorative panel 80 side. In other words, the half mirror 70 transmits light from the display module 60 side and reflects light from the decorative panel 80 side.

[0061] The half mirror 70 may be provided as a separate body, or may be produced by depositing a reflective material such as aluminum on the decorative panel 80 .

[0062] The half mirror 70 may be provided as a separate body. When the half mirror 70 and the decorative panel 80 are adjacent to each other, the half mirror 70 may be deposited on the decorative panel 80. When the half mirror 70 and the touch panel 190 are adjacent to each other, the half mirror 70 may be produced by depositing a reflective material such as aluminum on the touch panel 190.

[0063] The decorative portion 82 of the decorative panel 80 may be provided on the display module 60 side. Of course, the decorative portion 82 may be provided on the second display surface 151 side.

[0064] Furthermore, the panel section 81 of the decorative panel 80 and the touch panel 190 may be integrated, and the panel section 81 may include the touch panel in at least a portion thereof, which leads to a reduction in the number of parts.

[0065] [Third embodiment] 10 is a configuration diagram of a decorative panel 280 in the third embodiment. The third embodiment will be described below. The third display 250 in the third embodiment is similar to the first and second embodiments except for the configuration of the decorative panel 280. This time, the configuration of the decorative panel 280, which is the difference, will be described in detail.

[0066] (Decorative panel 280) As shown in FIG. 10, the decorative panel 280 is a colored transparent resin sheet, and is capable of coloring the third display surface 251 of the third display 250.

[0067] The decorative panel 280 has a rectangular shape similar to that of the display module 60 , and its dimensions are preferably such that it can cover the display surface 64 of the display module 60 .

[0068] The decorative panel 280 is desirably the same color as the edge 12 of the housing 10. In this way, when the third display 250 is in a power-off state, the difference in color between the third display surface 251 of the third display 250 and the edge 12 of the housing 10 does not stand out unnecessarily, and the interior is not impaired.

[0069] If the decorative panel 280 has a high transmittance, the image from the display module 60 can be clearly transmitted to the user. On the other hand, if the color of the decorative panel 280 is dark, the third display surface 251 of the third display 250 can be made closer to the color desired by the user. [Explanation of symbols]

[0070] 1 Display device 2. Intercom device 10. Chassis 11 Opening 12 Edge 13 Button section 50 1st display 51 First display surface 60 Display Module 61 Liquid crystal section 62 pixels 63 subpixels 63a 1st subpixel 63b Second subpixel 63c 3rd subpixel 64 Display surface 65 Backlight 70 Half Mirror 71 Transparent part 72 Reflector 80 Decorative Panel 81 Panel section 82 Decoration Department 90 Touch Panel 91 Display Panel 92 Contact Sensor 150 Second display 190 Touch Panel 250 3rd display 251 3rd display surface 280 Decorative Panel

Claims

1. A display module; a decorative panel having translucency, the decorative panel being disposed on a display surface side of the display module so as to cover the display surface; a half mirror disposed between the display module and the decorative panel so as to cover the display surface of the display module; A reflecting portion of the half mirror is disposed on the decorative panel side, and the half mirror transmits light from the display module side and reflects light from the decorative panel side. Display device.

2. The decorative panel has a decorative portion that reflects a predetermined light and a panel portion that is translucent, The decorative portion is provided so as to be scattered on the front or back surface of the panel portion. The display device according to claim 1 .

3. The panel unit includes at least a touch panel. The display device according to claim 2 .

4. A housing is provided around the decorative panel, The decorative portion has the same color as the housing. The display device according to claim 2 or 3.

5. The decorative portion is provided in a lattice or dot pattern. The display device according to claim 2 or 3.

6. The intervals of the decorative parts, which are in a grid or dot shape, are an integer multiple of the dot intervals of the display module. The display device according to claim 5 .

Images